Sole-rounding machine



L. 6. SMITH.

" SOLE ROUNDING MACHINE. APPLICATION FILED MAR. 19. 1919.

1,331,789. Patented Feb. 24,1920.

UNITED srntrps PATENT OFFICE.

LoUIs G, SMI'IVI-I, o BEooK'roiv, MA SACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY eonronnrron, or PATERSON, NEW JERSEY, A CORPORATION on NEW JERSEY.

To all whom it may concern:

Be it known that I, LOUIS G. SMrrH,-a

citizen of the United States, residing at.

Broekton, in the county of Plymouth and State of Massachusetts, have invented eertain new and useful'lmp'rovements in Sole- Rounding Machines; and I do hereby deelare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to machines for rounding or rounding and channeling: the soles of shoes, I

' The invention is intended primarilyto improve the operation of the crease and forepart guides of the machine of Patent No. 1,030,606, June 25, 1912, in rounding shoes in which the forepart of the sole is trimmed V closer than the shank. The mechanism which is utlhzed -1n thls machine for causmg the crease guide to rise as the forepart guide is moved into active position when trimming closer about the forepart-than in.

the shank,'eomprises a roll mounted on the forepart guide lever near its fulcrum, and 7 arranged to be engaged vby a cam plate on the crease guide lever; With this construction the movement of the roll, due to the movement of theforepart guide from its in activeto its active position, is necessarily slight, and in order to secure such movement of the vcrease guide as is usually required, the plate'on the crease guide mustbe shaped to allow the crease guide to move upward during substantially the entire downward movement of the forepart guide. This is V undesirable, and frequently results in imperfeet work in passing from the shank to the forepart. The present invention provides a mechanism which may be readilyapplied to the above machine todelay the upward.

movement of the crease-guide until the forepart guide has-nearly reached the shoe, and

then to permitjit to quickly rise as the'control'of the shoe passes from the crease guide to the forepart' guide, thus securing the proper timing of the upward movement of the crease guide requisite for uniformly aecurate work at the juncture of the shank and forepart when trimming closer about the forepart than in'the shank. r

The preferred form of the invention is shown in the drawings, in which Figure 1 is a side View of so much f he machine of the 'forepart guide into and out of active posichine of that patent; abutment roll is mounted in a plate 34-sesoLE-Ro NDING MACHI E;

' Specification of Letters l atent. Patented Feb, 24, 1920,

Application filed March 19, 1919. Serial No. 283,475.

and Fig. 2 is a similar view showing the parts 1n a dlfl erent position.

The-machine shown is provided with areciprocating trimming knife 2, a channel knife 4 carried in'the channel knife block 6, a feed jaw 8, a crease guide 10, and a forepart guide 12. The forepart guide is carried on the forward end of the forepart guide lever 14, which is moved into and out of active position through a rock shaft 16 connected with the lever through an arm 18 and link 20, and connected with an operating treadle through an arm 22 and treadle rod 24:. The crease guide 10 is secured at the forward end of a crease guide lever 26 whichcontrol itsvertical movements by the usual spring (not shown).

The mechanism for controlling the vertical movements of the crease guide to trim closer about the'forepart than through the shank comprises a fixed abutment 28 overlying the crease guide lever, anda controller bar 30 interposed between the abutment and a vwear plate 32 on the lever, and so connected with the mechanism for moving the tion that it willjlievbetween the abutment and'wear plate when the forepart guide is in inactive position, vand will be withdrawn from between the abutment and wear plate in the above patent maybe conveniently utilized asthe abutmentof the present mechanism in applying the invention to the ma- In such case the cured to the side of the'forepart guide lever,

and this plate should-be adjustedtobr'ing 100 the roll substantially in line with the fulcrum of the lever, so that-its positionlwill not be materiallyaffected by the movement of the forepart guide into and out of active position; Asshown, the rear end of the 105 controller bar is pivotally connected to "an arm 36 which is adjustably secured to the rock shaft 16through which the forepart guide is mo d i to and out of. active p ition, 7

in its movements as usual. .beso adjusted that the end of the controller bar does not pass from between the roll and plate until the forepart guide has nearly reached its active position in engagement with the shoe, thus delaying the upward movement of the crease guide until the fore part guide isin position to take over the control of the shoe, and insuring the accurate and proper control of the shoe in passing from the shank to the forepart. The

plate 32 may be adjusted vertically to determine the projection of the sole through the shank, and its 'adJustment may be de termined by a stop screw 38, the head of vwhichengages the lower end of the plate; 7 The plate may be secured in position by a. clamping screw 40. a The upper, end ofthe plate may be more or: less cam shape tocooperate with the end of the controller bar and the periphery of the abutment roll in controlling the upward movement of the crease. guide as the end of the bar withdraws from between the roll and plate, and to facilitate the entrance of the end of the bar between the roll and plate when the forepar-t guide is returned to inactiveposi- ,tion in shank. I 'Whileit is preferred to employ the specificconstruction and arrangement of parts in applying the invention to the machine of" the above patent, since this construction and arrangement may be readily incorporated inexisting machines, it will be understood that the invention is not limited in its application, to this machine, vor to the specific construction and arrangement of parts shown and described;

*What is claimed is 1. Assole rounding machine, having,in

combination, a forepart guide, a crease guidelever, a crease guide at the forward end of the lever, an abutment overlying the lever, a controller bar between the abutment and lever, and mechanism for withdrawing-the bar' as the' forepart guide is brought: into active position.

"2.A sole rounding machine, having, in combinatiom a forepart guide, a crease passing from the forepart to the guide lever, a crease guide at the-forand connections for retracting the bar during the; movement of the forepart guide 1nto active position constructed. to withdraw the end of the bar from between the lever and abutment as the forepart guide 'reaches active position; s

4:. A sole rounding machine, having, in combination, a forepart' guide, ,a crease guide lever, a crease guide at the forward end .of the lever, a vertically adjustable plate on the lever, an abutment'over'lying the plate, a controller bar arranged to ,lie between the abutment and plate when the forepart guide is out of active position, and

means for withdrawing the end of the bar from between the abutment and plate during the final movement of' the forepart guide into active position.

I 5. A sole rounding machine, having, in combination, a forepart guide, a rock shaft connected to move the guide into active position, a crease guide lever, a crease guide at the forward end of the lever, an abutment overlying the lever,'a bar lying between the abutment and lever, and an arm on the forepart guide rockshaft to which the rear end of the bar is connected. V A

6. A sole rounding machine, having,.in w

combination, a forepart guide lever, a crease guide lever, a roll secured to the forepart guide lever substantially in line with its fulcrum, a plate on the crease guide lever underlying the roll, and; a bar arranged to beadvanced and retracted between the roll and plate upon movement of the forepart guide out of and into active position.

' 7. A sole rounding machine,=having,,in

combination, a forepart guidenormally held j inraised inactive position, a creased guide for guiding the shoe while operating through the shank, means formoving the forepart guide device into active position,

and mechanism for retaining the crease guide in normal position until the'forepart "guide nearly reaches the shoe and then causing it to quickly rise to meet the forepartguide. I

- LOUIS G-JSMITH-= 

